Search Results - "Fahey, D W"

Recent Trends in Global Emissions of Hydrochlorofluorocarbons and Hydrofluorocarbons: Reflecting on the 2007 Adjustments to the Montreal Protocol by Montzka, S. A, McFarland, M, Andersen, S. O, Miller, B. R, Fahey, D. W, Hall, B. D, Hu, L, Siso, C, Elkins, J. W

“…Global-scale atmospheric measurements are used to investigate the effectiveness of recent adjustments to production and consumption controls on…”
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Global-scale black carbon profiles observed in the remote atmosphere and compared to models by Schwarz, J. P., Spackman, J. R., Gao, R. S., Watts, L. A., Stier, P., Schulz, M., Davis, S. M., Wofsy, S. C., Fahey, D. W.

“…Refractory black carbon (rBC) aerosol loadings and mass size distributions have been quantified during the HIPPO campaign above the remote Pacific from 80N to…”
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Airborne observations of regional variation in fluorescent aerosol across the United States by Perring, A. E., Schwarz, J. P., Baumgardner, D., Hernandez, M. T., Spracklen, D. V., Heald, C. L., Gao, R. S., Kok, G., McMeeking, G. R., McQuaid, J. B., Fahey, D. W.

“…Airborne observations of fluorescent aerosol were made aboard an airship during CloudLab, a series of flights that took place in September and October of 2013…”
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Measurement of the mixing state, mass, and optical size of individual black carbon particles in urban and biomass burning emissions by Schwarz, J. P., Gao, R. S., Spackman, J. R., Watts, L. A., Thomson, D. S., Fahey, D. W., Ryerson, T. B., Peischl, J., Holloway, J. S., Trainer, M., Frost, G. J., Baynard, T., Lack, D. A., de Gouw, J. A., Warneke, C., Del Negro, L. A.

“…In situ measurements of the mass, mixing state, and optical size of individual black‐carbon (BC) particles in the fine mode (90–600 nm) have been made in fresh…”
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Single-particle measurements of midlatitude black carbon and light-scattering aerosols from the boundary layer to the lower stratosphere by Schwarz, J. P., Gao, R. S., Fahey, D. W., Thomson, D. S., Watts, L. A., Wilson, J. C., Reeves, J. M., Darbeheshti, M., Baumgardner, D. G., Kok, G. L., Chung, S. H., Schulz, M., Hendricks, J., Lauer, A., Kärcher, B., Slowik, J. G., Rosenlof, K. H., Thompson, T. L., Langford, A. O., Loewenstein, M., Aikin, K. C.

“…A single-particle soot photometer (SP2) was flown on a NASA WB-57F high-altitude research aircraft in November 2004 from Houston, Texas. The SP2 uses…”
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Biomass burning in Siberia and Kazakhstan as an important source for haze over the Alaskan Arctic in April 2008 by Warneke, C., Bahreini, R., Brioude, J., Brock, C. A., de Gouw, J. A., Fahey, D. W., Froyd, K. D., Holloway, J. S., Middlebrook, A., Miller, L., Montzka, S., Murphy, D. M., Peischl, J., Ryerson, T. B., Schwarz, J. P., Spackman, J. R., Veres, P.

“…During the ARCPAC (Aerosol, Radiation, and Cloud Processes affecting Arctic Climate) airborne field experiment in April 2008 in northern Alaska, about 50…”
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Coatings and their enhancement of black carbon light absorption in the tropical atmosphere by Schwarz, J. P., Spackman, J. R., Fahey, D. W., Gao, R. S., Lohmann, U., Stier, P., Watts, L. A., Thomson, D. S., Lack, D. A., Pfister, L., Mahoney, M. J., Baumgardner, D., Wilson, J. C., Reeves, J. M.

“…Black carbon (BC) is the dominant aerosol absorber of solar radiation in the atmosphere and is an important component of anthropogenic climate forcing. BC's…”
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Global-scale seasonally resolved black carbon vertical profiles over the Pacific by Schwarz, J. P., Samset, B. H., Perring, A. E., Spackman, J. R., Gao, R. S., Stier, P., Schulz, M., Moore, F. L., Ray, Eric A., Fahey, D. W.

“…Black carbon (BC) aerosol loadings were measured during the High‐performance Instrumented Airborne Platform for Environmental Research Pole‐to‐Pole…”
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Calculations of solar shortwave heating rates due to black carbon and ozone absorption using in situ measurements by Gao, R. S., Hall, S. R., Swartz, W. H., Schwarz, J. P., Spackman, J. R., Watts, L. A., Fahey, D. W., Aikin, K. C., Shetter, R. E., Bui, T. P.

“…Results for the solar heating rates in ambient air due to absorption by black-carbon (BC) containing particles and ozone are presented as calculated from…”
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An important contribution to springtime Arctic aerosol from biomass burning in Russia by Warneke, C., Froyd, K. D., Brioude, J., Bahreini, R., Brock, C. A., Cozic, J., de Gouw, J. A., Fahey, D. W., Ferrare, R., Holloway, J. S., Middlebrook, A. M., Miller, L., Montzka, S., Schwarz, J. P., Sodemann, H., Spackman, J. R., Stohl, A.

“…Using aircraft observations and transport model calculations we determine the total amounts of various gas‐phase and aerosol species in the Arctic due to…”
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A light-weight, high-sensitivity particle spectrometer for PM2.5 aerosol measurements by Gao, R. S., Telg, H., McLaughlin, R. J., Ciciora, S. J., Watts, L. A., Richardson, M. S., Schwarz, J. P., Perring, A. E., Thornberry, T. D., Rollins, A. W., Markovic, M. Z., Bates, T. S., Johnson, J. E., Fahey, D. W.

“…A light-weight, low-cost optical particle spectrometer for measurements of aerosol number concentrations and size distributions has been designed, constructed,…”
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Modelled radiative forcing of the direct aerosol effect with multi-observation evaluation by Myhre, G., Berglen, T. F., Johnsrud, M., Hoyle, C. R., Berntsen, T. K., Christopher, S. A., Fahey, D. W., Isaksen, I. S. A., Jones, T. A., Kahn, R. A., Loeb, N., Quinn, P., Remer, L., Schwarz, J. P., Yttri, K. E.

“…A high-resolution global aerosol model (Oslo CTM2) driven by meteorological data and allowing a comparison with a variety of aerosol observations is used to…”
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Assessing Single Particle Soot Photometer and Integrating Sphere/Integrating Sandwich Spectrophotometer measurement techniques for quantifying black carbon concentration in snow by Schwarz, J. P, Doherty, S. J, Li, F, Ruggiero, S. T, Tanner, C. E, Perring, A. E, Gao, R. S, Fahey, D. W

“…We evaluate the performance of the Single Particle Soot Photometer (SP2) and the Integrating Sphere/Integrating Sandwich Spectrophotometer (ISSW) in…”
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Diverse policy implications for future ozone and surface UV in a changing climate by Butler, A H, Daniel, J S, Portmann, R W, Ravishankara, A R, Young, P J, Fahey, D W, Rosenlof, K H

“…Due to the success of the Montreal Protocol in limiting emissions of ozone-depleting substances, concentrations of atmospheric carbon dioxide, nitrous oxide,…”
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Extinction and optical depth of contrails by Voigt, C., Schumann, U., Jessberger, P., Jurkat, T., Petzold, A., Gayet, J.-F., Krämer, M., Thornberry, T., Fahey, D. W.

“…One factor limiting the understanding of the climate impact from contrails and aircraft induced cloud modifications is the accurate determination of their…”
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The Detection Efficiency of the Single Particle Soot Photometer by Schwarz, J. P., Spackman, J. R., Gao, R. S., Perring, A. E., Cross, E., Onasch, T. B., Ahern, A., Wrobel, W., Davidovits, P., Olfert, J., Dubey, M. K., Mazzoleni, C., Fahey, D. W.

“…A single particle soot photometer (SP2) uses an intense laser to heat individual aerosol particles of refractory black carbon (rBC) to vaporization, causing…”
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The AquaVIT-1 intercomparison of atmospheric water vapor measurement techniques by Fahey, D. W, Gao, R.-S, Möhler, O, Saathoff, H, Schiller, C, Ebert, V, Krämer, M, Peter, T, Amarouche, N, Avallone, L. M, Bauer, R, Bozóki, Z, Christensen, L. E, Davis, S. M, Durry, G, Dyroff, C, Herman, R. L, Hunsmann, S, Khaykin, S. M, Mackrodt, P, Meyer, J, Smith, J. B, Spelten, N, Troy, R. F, Vömel, H, Wagner, S, Wienhold, F. G

“…The AquaVIT-1 intercomparison of atmospheric water vapor measurement techniques was conducted at the aerosol and cloud simulation chamber AIDA (Aerosol…”
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Inferring ice formation processes from global-scale black carbon profiles observed in the remote atmosphere and model simulations by Fan, S.-M., Schwarz, J. P., Liu, J., Fahey, D. W., Ginoux, P., Horowitz, L. W., Levy II, H., Ming, Y., Spackman, J. R.

“…Black carbon (BC) aerosol absorbs solar radiation and can act as cloud condensation nucleus and ice formation nucleus. The current generation of climate models…”
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A two-channel, tunable diode laser-based hygrometer for measurement of water vapor and cirrus cloud ice water content in the upper troposphere and lower stratosphere by Thornberry, T. D, Rollins, A. W, Gao, R. S, Watts, L. A, Ciciora, S. J, McLaughlin, R. J, Fahey, D. W

“…The recently developed NOAA Water instrument is a two-channel, closed-path, tunable diode laser absorption spectrometer designed for the measurement of upper…”
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A Novel Method for Estimating Light-Scattering Properties of Soot Aerosols Using a Modified Single-Particle Soot Photometer by Gao, R. S., Schwarz, J. P., Kelly, K. K., Fahey, D. W., Watts, L. A., Thompson, T. L., Spackman, J. R., Slowik, J. G., Cross, E. S., Han, J.-H., Davidovits, P., Onasch, T. B., Worsnop, D. R.

“…A Single-Particle Soot Photometer (SP2) detects black refractory or elemental carbon (EC) in particles by passing them through an intense laser beam. The laser…”
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